Patents Assigned to Hoechst Aktiengesell - Justia Patents Search

Patents Assigned to Hoechst Aktiengesell

Process for the preparation of bifunctional tertiary aromatic phosphine sulfides, and also several specific representatives of this class of compounds

Patent number: 4847419

Abstract: A compound of the formula I, ##STR1## in which X is F, Cl or Br,R is alkyl having from 1 to 5 carbon atoms, aryl, aryloxy or aralkyl andn is an integer from 1 to 5, a plurality of R representing equal or different of said substituents and a process for preparing them.

Type: Grant

Filed: January 15, 1987

Date of Patent: July 11, 1989

Assignee: Hoechst Aktiengesell

Inventors: Erwin Weiss, Hans-Jerg Kleiner